### Brain Teasers

# Three Brothers

If the age of each of the three brothers were laid together, we would get 40. What was the age of each brother when you know that the eldest brother is as twice as old as the youngest brother, and the number 4 added to the youngest's age will give us the age of the brother in-between?

### Answer

The youngest one is 9 years old, the one in the middle is 13, and the eldest is 18.Because:

The youngest = x

The one in the middle = x+4

The eldest = 2x

x+(x+4)+2x=40

x+x+4+2x=40

x+x+2x=40-4

4x=36

4x/4=36/4

x=9

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